#include<iostream>
#include<string>
using namespace std;

int main()
{
	//字符串C语言的写法
	char str1[] = " Hello world";
	//字符串C++的写法
	string str2 = " Hello C++";
	cout << str1 << endl;
	cout << str2 << endl;
	system("pause");
	return 0;
}